-47.26% is the change from 328 to 173
Calculation steps:
[( 173 - 328 ) ÷ 328] x 100 = -47.26%
Formula
Percentage change = [(173 - 328) / 328] x 100
Subtract the new number by the original number
173 - 328 = -155
-155 ÷ 328 = -0.4725609756097561
-0.4725609756097561 x 100 = -47.26%